Real number system (ℕ, ℕ₀, ℤ, ℚ, ℚ′)

Which number sets does $\tfrac{1}{3}$ belong to? Consider natural numbers (ℕ), whole numbers (ℕ$_{0}$), integers (ℤ), rational numbers (ℚ) and irrational numbers (ℚ′).

Which of the following are integers? A) 147 B) 0,4 C) $\sqrt{20}$ D) $-\tfrac{1}{8}$ E) 0,6666…

Which of the following are integers? A) −148 B) $-\tfrac{3}{4}$ C) π D) 0,7 E) $\sqrt{109}$

Which number sets does $-\tfrac{5}{7}$ belong to? Consider natural numbers (ℕ), whole numbers (ℕ$_{0}$), integers (ℤ), rational numbers (ℚ) and irrational numbers (ℚ′).

Which of the following are integers? A) −11 B) $\sqrt{46}$ C) 0 D) 0,6 E) 77

Is $\sqrt{57}$ rational or irrational? Explain your answer.

Which of the following are integers? A) $-\tfrac{1}{2}$ B) $\sqrt{225}$ C) 0 D) 0,8 E) $\sqrt{23}$

Which number sets does $\sqrt{169}$ belong to? Consider natural numbers (ℕ), whole numbers (ℕ$_{0}$), integers (ℤ), rational numbers (ℚ) and irrational numbers (ℚ′).

Which of the following are integers? A) 0 B) $\sqrt{91}$ C) −139 D) $\sqrt{81}$ E) $\tfrac{1}{3}$

Which number sets does 0,1111… belong to? Consider natural numbers (ℕ), whole numbers (ℕ$_{0}$), integers (ℤ), rational numbers (ℚ) and irrational numbers (ℚ′).

Which number sets does $\tfrac{2}{3}$ belong to? Consider natural numbers (ℕ), whole numbers (ℕ$_{0}$), integers (ℤ), rational numbers (ℚ) and irrational numbers (ℚ′).

Which of the following are integers? A) $\sqrt{2}$ B) $\tfrac{3}{4}$ C) $\sqrt{36}$ D) −97 E) π